Where can i play Kantai Collection?

It's a F2P web browser game, however currently there's only a Japanese server for it a.k.a it's hard to get in unless you're in Japan or know Japanese.

link and try to get in, but people still seem to have some problems with registering. There is a PS Vita game coming our for the series this August, I have no idea on if it'll be getting an international release but if it is you might be better off playing that instead. In the event you actually get into the game online, it will still all be in Japanese.